Which system protects us from radiation and the vacuum of space?
a. geosphere
b. hydrosphere
c. atmosphere
d. biosphere

Answer

c. atmosphere

Explanation

The earth's atmosphere is a layer of gases surrounding the earth's surface. It is an envelope of gases surroundings the earth. Beyond the atmosphere is vacuum. The atmosphere protects us from strong radiations from the sun.

The correct answer from the choices given in the question is atmosphere.

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true tan speed = ang vel x radius